﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Count
    {




        public double bc1(double bj)
        {
            return bj * bj * 3.14;
        }
        public double bc2(double c, double k)
        {
            return c * k;
        }


    }
}
